UNIVERSITY OF TEXAS AT EL PASO Steering System PACE Global Emerging Market Vehicle Project Final Report – July, 21st 2009

Steering System Design Design Process: Domain Knowledge and Client Requirements Functions and Interactions Conceptualization Evaluation and Selection Detail Design Analysis Motion Structural Drawings

Domain Knowledge and Client Requirements Product Knowledge obtained from Delphi experts Client Requirements obtained from USP and other universities

Functions and Interactions Function Definitions Interaction Definitions

Conceptualization

Evaluation and Selection Requirement Weighting Decision Matrix

Detail Design Final Steering System Design SUB-COMPONENT TYPE POWER NON ASSITED COLUMN COLLAPSABLE / TELESCOPIC INTERMEDIATE SHAFT 2 CARDAN JOINTS RACK SIDE TAKE OFF GEARING HELICOIDAL / VARIABLE Final Steering System Design

Steering Wheel Design

Steering Column Design

Intermediate Shaft Design

Rack & Pinion Design

Analysis – Structural FEA Rack Housing Pinion & Rack Contact

Analysis – Motion Motion showing Ackerman Geometry Wheel to Wheel Motion Simulation Motion showing Ackerman Geometry

Drawings Component Drawings Assembly Drawings

Overall Conclusions

Thank you! Dr. Noe Vargas Hernandez Assistant Professor Scott Dale Ali Escudero Ignacio Pena Angel Rodriguez Gabriel Davila Angel Delgado, Rafael Gonzalez Thank you! Dr. Noe Vargas Hernandez Assistant Professor Department of Mechanical Engineering Engineering Annex, Room 112 University of Texas at El Paso 500 W. University Avenue El Paso, TX 79968-0521 Phone: (915) 747-8456 Fax: (915) 747-5019